Answer:
No he is not correct. As the answer would be -2/5 = -0.4 and 5/-2 = -2.5 as the answer is also not opposite.
Answer:
1 + i
Step-by-step explanation:
To rationalize multiply numerator and denominator by (2 + i )

Answer:
D 2:3
Step-by-step explanation:
The ratio can't get any smaller.
Answer: The systems are solved by solving for one variable in one of the equations, then substituting that equation into the second equation. Solve for a in the second equation, then substitute the second equation into the first. The Elimination Method: Both equations are in standard form: Ax + By = C.